EP 1147236 A1 20011024 - CARBOTHERMIC ALUMINIUM PRODUCTION USING SCRAP ALUMINIUM AS COOLANT
Title (en)
CARBOTHERMIC ALUMINIUM PRODUCTION USING SCRAP ALUMINIUM AS COOLANT
Title (de)
KARBOTHERMISCHE HERSTELLUNG VON ALUMINIUM UNTER VERWENDUNG VON ALUMINIUM-SCHROTT ALS KÜHLMITTEL
Title (fr)
PRODUCTION D'ALUMINIUM CARBOTHERMIQUE UTILISANT COMME REFRIGERANT UN REBUT D'ALUMINIUM
Publication
Application
Priority
- US 0000287 W 20000106
- US 11525799 P 19990108
Abstract (en)
[origin: WO0040767A1] A process for producing aluminum metal by carbothermic reduction of alumina ore. Alumina ore is heated in the presence of carbon at an elevated temperature to produce an aluminum metal body contaminated with about 10-30 % by wt. aluminum carbide. Aluminum metal or aluminum alloy scrap then is added to bring the temperature to about 900-1000 DEG C and precipitate out aluminum carbide. The precipitated aluminum carbide is filtered, decanted, or fluxed with salt to form a molten body having reduced aluminum carbide content.
IPC 1-7
IPC 8 full level
C22B 5/10 (2006.01); C22B 9/02 (2006.01); C22B 21/00 (2006.01); C22B 21/02 (2006.01); C22B 21/06 (2006.01)
CPC (source: EP US)
C22B 5/10 (2013.01 - EP US); C22B 9/02 (2013.01 - EP US); C22B 21/0053 (2013.01 - EP US); C22B 21/02 (2013.01 - EP US); C22B 21/066 (2013.01 - EP US); Y02P 10/20 (2015.11 - EP US)
Citation (search report)
See references of WO 0040767A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0040767 A1 20000713; AT E268390 T1 20040615; CA 2358070 A1 20000713; CA 2358070 C 20090929; DE 60011227 D1 20040708; DE 60011227 T2 20050707; DK 1147236 T3 20040628; EP 1147236 A1 20011024; EP 1147236 B1 20040602; ES 2216864 T3 20041101; JP 2002534602 A 20021015; PT 1147236 E 20041029; US 2002029656 A1 20020314; US 6475260 B2 20021105
DOCDB simple family (application)
US 0000287 W 20000106; AT 00906878 T 20000106; CA 2358070 A 20000106; DE 60011227 T 20000106; DK 00906878 T 20000106; EP 00906878 A 20000106; ES 00906878 T 20000106; JP 2000592459 A 20000106; PT 00906878 T 20000106; US 93985701 A 20010827